From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id E8E10CCFA1A for ; Wed, 12 Nov 2025 08:06:43 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:MIME-Version: Content-Transfer-Encoding:Content-Type:In-Reply-To:From:References:Cc:To: Subject:Date:Message-ID:Reply-To:Content-ID:Content-Description:Resent-Date: Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=LKYmegH3ykHGiWV1hZKmrDw3+XreT4d7ug60Uik8NjY=; b=lNLsHNX6DLDmvKscYuQOkfeWMi NVICZ7O6X9eFUVIaC+FXvv25nyKcv1P/UuYtJH5CZxM4uFIxZQVLdRn52AFSungeZtIcKvAVCmvoB /5NmmUFsIcmh5F+zGntk+qTSTQCE3Na+1glIp/G0BsIDh7btvseEkVBgbDE1V69WtYkApxFyptKHR imqlJ/VjFXU6sa8tjOSD58XZAMHxFX+xwWqQAeHwW9M/NyT5XebACiS95JnSLwf/D5Y8V3W8VLTbU vJrbo1+CI5j3zONTgCPAxrvMvORUGOU/fwRAQzN15gstnfkLUwOpAwNbD7DqToF0nB2zmzIi2gZSA 1kq71HrQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1vJ5sB-00000008JLe-1g3E; Wed, 12 Nov 2025 08:06:35 +0000 Received: from mail-southcentralusazon11012009.outbound.protection.outlook.com ([40.93.195.9] helo=SN4PR2101CU001.outbound.protection.outlook.com) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1vJ5s7-00000008JKT-2u3r; Wed, 12 Nov 2025 08:06:33 +0000 ARC-Seal: i=1; a=rsa-sha256; s=arcselector10001; d=microsoft.com; cv=none; b=ZouAj7AhL/BkBx4cdt/c/JJ/Ncqv5WcHHKCP0X5bUUk0AZHUJQIiiAecbHuOcVdvdfYsUXR2uwYGbnZaljdvKLCDuC7BSXOj+1+3NRr4ItSnrdfgDRI0XE01bpEpeCHyJYvyQTQ9ohoL1IqnU0862M5dpUUL7+m5Sa8io+uRmwb/3RNGH9PiAJtFTtK8ZJnG6BcG3ysW3UwmDCw1pxbLWZZ4dI6cnwEOSJOn6haNtWL/BJuan3N9rbJbYvi5mK/WwkawvAJ+GT5PM4FlLJ72AcCnho+y7k7T4Kj3dXlCvT5mHb7JDmAtHiTAdiB1l7c0eOSveTyYQADEI1pbWR1t8w== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=microsoft.com; s=arcselector10001; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-AntiSpam-MessageData-ChunkCount:X-MS-Exchange-AntiSpam-MessageData-0:X-MS-Exchange-AntiSpam-MessageData-1; bh=LKYmegH3ykHGiWV1hZKmrDw3+XreT4d7ug60Uik8NjY=; b=zBXoC7ZiMa9ElI40t/wL59FujROvSr/vsVSUbHU8DMATZafQl1xzqIGwCY7ZvhjwIlIni/tg3cmfXxPLKSebpcBj6vqHeMpcDCJkRJU/giUEV8FkHIgOiS+80kts2q+TPpObOmCi204guKF429dGJWTKRz3Zj1TpENjWHwwAca73evg85WHjlHAqS3rqdq/s32v1i3Fb1KCvxTjG/dImT2Pn4cCmassW+bAudYvvyvYUoIM2e6NYBtVtNlrrDjy8nF/5GS7jYt2f4kIStmADApoTWKRUNTNCiTnccjkhrzO6/nXwNyrES5K4vcdXPZCCEsKKX/sN1euGydvC2Pt7uA== ARC-Authentication-Results: i=1; mx.microsoft.com 1; spf=pass smtp.mailfrom=altera.com; dmarc=pass action=none header.from=altera.com; dkim=pass header.d=altera.com; arc=none DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=altera.com; s=selector2; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=LKYmegH3ykHGiWV1hZKmrDw3+XreT4d7ug60Uik8NjY=; b=ngzOWlR9HHenRcNT4vNyCG0iWzBW5wOfCf4vgi/9z+VmAry9jxiKcxAuofHbuxnRYyAG/0ggp2W1TwxZtnN1TBX9LCxs0yrDoPt2QAHhBo3ip3n6C6oElWIbyCF1OPJcAqFvmhRwjKrHixsea2IG+WeKuFQtjdwpmqShxUPvHQRZri+1Zb6k/Ouon1A6Tv3PYWy4PwK5lEbfjR1qWugV1zYAvmHglc1lb8KvzocMlCRHAfgcVydpHxtKFgkWNB/1DtIivQ3SjXrJUGwgCZ3W0SroOQeonZ383dr7D7KUGq+UW4QruJItm4n88WyE34lBenhgZaMuLsdGSoQrf+YFTA== Authentication-Results: dkim=none (message not signed) header.d=none;dmarc=none action=none header.from=altera.com; Received: from SA1PR03MB6498.namprd03.prod.outlook.com (2603:10b6:806:1c5::7) by DM4PR03MB7000.namprd03.prod.outlook.com (2603:10b6:8:48::10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.9320.15; Wed, 12 Nov 2025 08:06:25 +0000 Received: from SA1PR03MB6498.namprd03.prod.outlook.com ([fe80::feea:da58:faeb:9ebc]) by SA1PR03MB6498.namprd03.prod.outlook.com ([fe80::feea:da58:faeb:9ebc%4]) with mapi id 15.20.9320.013; Wed, 12 Nov 2025 08:06:24 +0000 Message-ID: Date: Wed, 12 Nov 2025 13:36:09 +0530 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v6 0/2] PCI: Configure Root Port MPS during host probing To: Hans Zhang <18255117159@163.com>, lpieralisi@kernel.org, kwilczynski@kernel.org, bhelgaas@google.com, helgaas@kernel.org, heiko@sntech.de, mani@kernel.org, yue.wang@Amlogic.com Cc: pali@kernel.org, neil.armstrong@linaro.org, robh@kernel.org, jingoohan1@gmail.com, khilman@baylibre.com, jbrunet@baylibre.com, martin.blumenstingl@googlemail.com, cassel@kernel.org, linux-pci@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-amlogic@lists.infradead.org, linux-rockchip@lists.infradead.org References: <20251104165125.174168-1-18255117159@163.com> Content-Language: en-US From: Mahesh Vaidya In-Reply-To: <20251104165125.174168-1-18255117159@163.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: MA5PR01CA0070.INDPRD01.PROD.OUTLOOK.COM (2603:1096:a01:1b7::10) To SA1PR03MB6498.namprd03.prod.outlook.com (2603:10b6:806:1c5::7) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SA1PR03MB6498:EE_|DM4PR03MB7000:EE_ X-MS-Office365-Filtering-Correlation-Id: 55c0c3a0-5d68-48a4-a02d-08de21c25f1e X-MS-Exchange-AtpMessageProperties: SA X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|1800799024|7416014|376014|366016|7053199007; X-Microsoft-Antispam-Message-Info: =?utf-8?B?TFRFRG5aY3JHOEZTMFlxZ3YxQTFNYlM2Vy9iaFh5MFhaNlkwWTNEWFduVlds?= =?utf-8?B?ZndNS0Z3VEh3MDdYK1dqcTA2aC85QWE4OHlUTS9HN3pwSmdpT2F1eHRIM0Ru?= =?utf-8?B?N1JCR2JpOXRLRjhISlpSeXdZejZ4VmlENHFncW9sRStqMVZBL0ZjenNnb3Fq?= =?utf-8?B?WjlKUHJjNDdJWGQ5Qm95ZHdRUjc4TTVDUlRmb0tGSUh5MUV6akkwOVZxUDRW?= =?utf-8?B?VnJNdXBoVmM0SHNXTElDQU9OVWZUdmk2eU1SaEZVYWJpbDFOeTJYSTA3OTJX?= =?utf-8?B?RGh1WlBzOE1YSEFlbzdCeSt3UkZVTTlWQzBxeHF5OGNEVFhsZkhqeTNLbHJK?= =?utf-8?B?WkpBWFlqSEJST0VqcDB4UWhVN2JQam00QVh0Sk9ldUQvcWR3Y3A3NXhlWnBT?= =?utf-8?B?OVJNdkJVcEQ2UWk3SGY5OWhiaEoyb0lUcmRIS2JvT0VuZkJyeFRpaUg0OWRk?= =?utf-8?B?RWZIOWRIY0oyTC9kVllpdDBJQkhUcGYvZmFsL0I4OEhkbTV4NUZIS0c1MTcz?= =?utf-8?B?R21kNjd1ZVh2ME1sLzJsQ3pHYUNoOVNZNXdMOTF6cW1yUDJTRGlFUjNBOGl1?= =?utf-8?B?MjVmL0VSQzRxTit6MWQvZW5yRWZxZ29Xazl0NHA3ejJYeDlWeE81VSs2akJr?= =?utf-8?B?Qm10OUtreHF1RFJQVUNhMG40NmhtdE9CaVZhMHVrWW5QUElabktLZWhXa201?= =?utf-8?B?UCtYWFYzV3pkWHIwUW1Xa0ZzdHVvbndZVlpDbTAxOC83ejNxR1JpMTY0ZUJo?= =?utf-8?B?c0pPK1ptUWhLakNrRm1HT3FNSVl3S2NCcUEycytpV21BSmtDY2hzaFhmRDly?= =?utf-8?B?NG9kRy9oMy9iNERKMVVqK0NDd0o5WXdiK0FEdXJ5QUhMdlc2YlVTbU53Zy9X?= =?utf-8?B?bThJVVVZWDErMzFTcWZkUzRMSmZVSjhYWGZrc3NxeURuNDRPWFFZWnZNSGU3?= =?utf-8?B?MExjMW5NTUdheEdKc09wejdiUXRPeVBCZHNyQ1B0TnRDeThZdXRxeGhRTlNO?= =?utf-8?B?cXdmZUZRckxQUDBEeXhZbEdiOGNqOUdiMS9ERngrZzU5L2hIS3BaU2xieFZL?= =?utf-8?B?c25SUEZjQ2YvRUhmTVpTSnBXYjc3UlNYUXJDMkNUUWFVOXR4S1h5elJpd3Vh?= =?utf-8?B?bEErdEUxdE1SY2d4N3pZdkF6dCsweXdLN3FreEFDUzA0T2lzQlZrUHFYL2J0?= =?utf-8?B?RmxyTzNXWjFBTkdWUXA4MkZEc2d4d2s0dDJ1V21vcURpcEExT3pMVml0clZq?= =?utf-8?B?eG9tSHBjZHJFU0ZiMi9FcnpSUHByYzN2R1NMS3hHMWtEZTlvbmcvOGlXWUNN?= =?utf-8?B?N1F6czdVSUI2YkZ2L1ordjdwUmcvMFJzTFo0TFV4ZWptTTYxNjg2c0ZPM3ZM?= =?utf-8?B?NFpGc1c5WDc2SlRod1RBVTVaL1g0bG5GeGxkb3pHeFFuNWwrb1lrLzNJejFo?= =?utf-8?B?TEZYallHU1Bsa2RmWnBaMzBFL2pPbFdCcnlOb0VXVTVTSjdVYnNkR3BvdFpU?= =?utf-8?B?cVltYTYwZ3hoRjF1TXErN0RkWkVxbnJTaTFNRFBwODhEYnQ2NlVieG13cC8r?= =?utf-8?B?K2JOZXV5M0JRV2NSd1U3a0lDdGRzQTlsSkUxN3dJMSt3dVpUK3hzQXhaVFBs?= =?utf-8?B?eWxTcTh6aGZ1Wk93am1oOFl1NlhFYzVka2E2V01EUXJKdmNpWStvMEJtTkZU?= =?utf-8?B?bGJwV3hMU0hSU3lBeVErRFVmTWN1OEg1eHk2UGJmN2ZPRldjWXRCTWg4ZytJ?= =?utf-8?B?bHMwMzdrdy96SHdzczlkUHFMT2dmTzRxenI5OEJweGxWa1hjb3loY0h3SUlG?= =?utf-8?B?cVlGUXA5YTg0dnFrRVpseGRNR2EvZTU5eW9jMnZSTU5tamt4TmpSdDhOVmNK?= =?utf-8?B?Z0JMVjQ4YW5qaFVHR2l2OVNUM0NpaklFNmtuZk5oVWRuYUVBMCtBZHhZUm5q?= =?utf-8?Q?g0P5lv7C+yNNPkEg1ILEZEk06OZFDG5N?= X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:SA1PR03MB6498.namprd03.prod.outlook.com;PTR:;CAT:NONE;SFS:(13230040)(1800799024)(7416014)(376014)(366016)(7053199007);DIR:OUT;SFP:1101; X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?utf-8?B?NHdzYVBISWxjY2NlcThnOGVxcmJHWXhVdVhXZ2hNdTlCUThPWTBmUmFKdDYw?= =?utf-8?B?Ti8wdzVmU3UrcGVSZFFtaFBqUnFsVG5laXFqVlI1V1EwbHpQcE81L0JwK2NW?= =?utf-8?B?ZkRGOCtQTUY2UEVRbVh6QWZnOStEOTBuTUNnanpyaysvOS9xMmZ4Mm9Ed0la?= =?utf-8?B?UkJTTnB6QmpRMTBlaGM4SVJZTVp5L0dYUzJ5aGdhM2E4ZVdUS0Roa1htZFZl?= =?utf-8?B?MitoWkExWWhZRkhiTkxqZHhqbXZOQnFub1J3TWlnQjQwU0tLZDBFOVBzQ1lJ?= =?utf-8?B?VWFxblBmRno2bFNYZkdqNzVMaytEZmtwM2M5dVNHSG5nTkx4TTZIUENTZHE1?= =?utf-8?B?d1NrUW9Bam50WVhRQ3B4aCtZZ3ZvM2Mzalp5UVF0cW1zWEtLd3ZhcGdPUGlt?= =?utf-8?B?djA0bVRQTVBFSjFhU1FrSG9MaEZpUm9IbDduRTVvelZsQ3FkazJQZ0dBRVpR?= =?utf-8?B?N0FuV3l3REJhaFVBVkU0YXNoSFgvYURuRGhvQnlBMENiWEdDY2hDRkQ5NTNV?= =?utf-8?B?ODhXS1BsZWpneitMSnc2YlFZQ3dyT3phSXNaWnNhQWFXbU93aGYxVThycFI4?= =?utf-8?B?UVdsV00wWWtMcXk0ZkZqWmpVUCs4c2VMY0VKNjFkdTNJdy8wNEY0L2szczgv?= =?utf-8?B?QWJjMEhwQldOc1VwRytHRzlabnIzazBVelhjTmJaVy9BTHNkUGJoVzYwckxx?= =?utf-8?B?Mnl0cHpCc21YNVVwL3Y3dzZzSmR1d3p3MjJKaWxkWExzZnhWdkdOQlA5dU9R?= =?utf-8?B?d2RCc2k4WWNweTU5ODNzZlhkOVZxWVdyL04xM2RLY2dBb0ZGZzZvVUZ4QUlX?= =?utf-8?B?K21iUnNVbTNqMCtqQ1RlRVNKdlpWaHkyVE9aUUNWaTJrZmdqUGRKM2pITDVp?= =?utf-8?B?SE1qY3FoeGxhU3QzSFFvSWhQZmVpbmh6MnBLKzNGOTV3bUdwV2I1cHpXQk5z?= =?utf-8?B?U3grL0s1WlVlUGYvQWVWUDY0NDR1Mm1hdjVDdFZNVzJuWVhSU3REQXFTWDA4?= =?utf-8?B?KzRYUEtES3NyRHl1ZzdPM2tXS3IzcytIeGFOMXlEUWtRMytWSjRPSjdUaUE4?= =?utf-8?B?U2VsRnQvN0h4aU4zOUQzRjJjckdhR2RuSlRwOERJSzNLdG5JeTZFU25HcWFS?= =?utf-8?B?d2ZrSUlYRmJKOUNGVThNTExoSmMvS3Y4bzZNQ2RrY1NxRVVWakFxN3VTZ2Rq?= =?utf-8?B?VU5JVlYwb2syY1YzTzVQVExTVmZ3UXhYRzV4bEs2L1FoSnh6c0lkYzFscXNQ?= =?utf-8?B?NldCZklVc3R3TWFHVTBWOEJXREhrZ2tKV1BzeUZ3SUpaZ3lLeEU0dEdQQzNs?= =?utf-8?B?Y2NlYVRITHJxQXZXOVpWWHJaTkxldzFJLzZpRk42L29vSlVGZ2E3LzF5citl?= =?utf-8?B?UkVvQklEeXpQRmtFS20yY1g2R0Y2T09xSWl3ZGNxMWFnNVFNOGhubjVsTnJL?= =?utf-8?B?LzhVZjdUNmpnazNKNW9wN1gzOHlrSFFEbmZhZm80eWpxSG5CdlVQUlZuakRj?= =?utf-8?B?UGpLVi9RY1IyL3RJalA1clY3bEROVHRRZXV5MUx3MVZDeUk3Z3NmazZYY09K?= =?utf-8?B?eHJ0dUNYNTVMTi9sRUUrWXhGdE0yUkh3UTdVYW5MSnMwZzlidEZoeEpGNzR6?= =?utf-8?B?TGZiaHBkck94Zll1UjlpYXVmekFlcnVrelhiOTFHdDJJK3B3V1Zqb1FDMGtj?= =?utf-8?B?MDBXRTVnWkpremtBUmFjVGVMalNvamlvbXdRanNOa2xhVjczVzE3WldYRjIv?= =?utf-8?B?YzkrVTZIZDlJNk94L1BVMFNNdTB6MU9JMlVSNW14YXNBb1liMm1UQmtKNjlE?= =?utf-8?B?RktvdXF6YkxKWnJzWDAyczhvd3FabC9KY1JvWVlaWUdGcWN5ZlVUSW10K1ZT?= =?utf-8?B?cURLdytiQWJRMmxaM3BKbFRMNjNJbUZlRWp5Z2w2Q2xhRG1HclJNUjhZbWhK?= =?utf-8?B?QWpHV1RQUjlqelpHYVFFQ1NlaWpDd3pXeVAzWTZBSGxsUmV5ZG9XYWdXaFpB?= =?utf-8?B?bjN2Tld2RGxEVENYUVcvYXNib2JXQ3FnZk9KVWJlL0JuWmNBTHlnaXl2WHUr?= =?utf-8?B?elBYTWd6M1BCWkF4VGRFSlN6VllKRk1vSFdPa1R5bjg5WUQrTkR1SkQ4amVo?= =?utf-8?B?RVpoK1h4dFVLZEwwSzU0VG5NdGJIbkZuOUc4T0x6UkgyeXBzMTU2QXlqYzlM?= =?utf-8?B?OFE9PQ==?= X-OriginatorOrg: altera.com X-MS-Exchange-CrossTenant-Network-Message-Id: 55c0c3a0-5d68-48a4-a02d-08de21c25f1e X-MS-Exchange-CrossTenant-AuthSource: SA1PR03MB6498.namprd03.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 12 Nov 2025 08:06:24.4441 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: fbd72e03-d4a5-4110-adce-614d51f2077a X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: ATzkl0ezhRH1rKwHFVjR6VvB2DeXAHGSVnh9bP9gySdrum6KjFHRLjh8ZSDLbIBMQylD0+piduR/16+6hgd8/w9M3WwfgKyOH7Nvu6GEXeQ= X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM4PR03MB7000 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251112_000631_755159_200AA41B X-CRM114-Status: GOOD ( 17.58 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 04-11-2025 22:21, Hans Zhang wrote: > Current PCIe initialization exhibits a key optimization gap: Root Ports > may operate with non-optimal Maximum Payload Size (MPS) settings. While > downstream device configuration is handled during bus enumeration, Root > Port MPS values inherited from firmware or hardware defaults often fail > to utilize the full capabilities supported by controller hardware. This > results in suboptimal data transfer efficiency throughout the PCIe > hierarchy. > > This patch series addresses this by: > > 1. Core PCI enhancement (Patch 1): > - Proactively configures Root Port MPS during host controller probing > - Sets initial MPS to hardware maximum (128 << dev->pcie_mpss) > - Conditional on PCIe bus tuning being enabled (PCIE_BUS_TUNE_OFF unset) > - Maintains backward compatibility via PCIE_BUS_TUNE_OFF check > - Preserves standard MPS negotiation during downstream enumeration > > 2. Driver cleanup (Patch 2): > - Removes redundant MPS configuration from Meson PCIe controller driver > - Functionality is now centralized in PCI core > - Simplifies driver maintenance long-term > > --- > Changes for v6: > - Modify the commit message and comments. (Bjorn) > - Patch 1/2 code logic: Add !bridge check to configure MPS only for Root Ports > without an upstream bridge (root bridges), avoiding incorrect handling of > non-root-bridge Root Ports (Niklas). Tested this patch series on Agilex 7. Tested-by: Mahesh Vaidya > > Changes for v5: > https://patchwork.kernel.org/project/linux-pci/patch/20250620155507.1022099-1-18255117159@163.com/ > > - Use pcie_set_mps directly instead of pcie_write_mps. > - The patch 1 commit message were modified. > > Changes for v4: > https://patchwork.kernel.org/project/linux-pci/patch/20250510155607.390687-1-18255117159@163.com/ > > - The patch [v4 1/2] add a comment to explain why it was done this way. > - The patch [v4 2/2] have not been modified. > - Drop patch [v3 3/3]. The Maintainer of the pci-aardvark.c file suggests > that this patch cannot be submitted. In addition, Mani also suggests > dropping this patch until this series of issues is resolved. > > Changes for v3: > https://patchwork.kernel.org/project/linux-pci/patch/20250506173439.292460-1-18255117159@163.com/ > > - The new split is patch 2/3 and 3/3. > - Modify the patch 1/3 according to Niklas' suggestion. > > Changes for v2: > https://patchwork.kernel.org/project/linux-pci/patch/20250425095708.32662-1-18255117159@163.com/ > > - According to the Maintainer's suggestion, limit the setting of MPS > changes to platforms with controller drivers. > - Delete the MPS code set by the SOC manufacturer. > --- > > Hans Zhang (2): > PCI: Configure Root Port MPS during host probing > PCI: dwc: Remove redundant MPS configuration > > drivers/pci/controller/dwc/pci-meson.c | 17 ----------------- > drivers/pci/probe.c | 12 ++++++++++++ > 2 files changed, 12 insertions(+), 17 deletions(-) > > > base-commit: 691d401c7e0e5ea34ac6f8151bc0696db1b2500a